package com.itheima.reggie.service;

import com.baomidou.mybatisplus.extension.service.IService;
import com.itheima.reggie.entity.ShoppingCart;

public interface ShoppingCartService extends IService<ShoppingCart> {

    //减少购物车中套餐或者菜品的数量
    public ShoppingCart sub(ShoppingCart shoppingCart);

}
